Word.ws English Dictionary

tag on

tag on verb: to hover an RFID device such as a smartcard over a receiver, often with a graphical user interface, in order to make a payment or gain entry.

tag on: to hover an RFID device such as a smartcard over a receiver, often with a graphical user interface,...
Image: Anttihav, CC BY-SA 3.0, via Wikimedia Commons

Verb

tag on (third-person singular simple present tags on, present participle tagging on, simple past and past participle tagged on)

  1. (chiefly public transport) To hover an RFID device such as a smartcard over a receiver, often with a graphical user interface, in order to make a payment or gain entry.
    • Contactless smart card readers can be mounted at each door of an LRT car, allowing a rider to “tag on” and “tag off” on boarding and alighting the vehicle.2003, Daniel Fleishman, United States. Federal Transit Administration, National Research Council (U.S.). Transportation Research Board, Fare policies, structures and technologies: update, page 39
    • Tag-on/tag-off on bus services with variable fares and transfer rebates have worked very well in Singapore.2006, Mike McDonald, Intelligent transport systems in Europe, page 40
    Synonyms:
    swipe, flash, tag, touch in

Synonyms of tag on

Antonyms

Forms of tag on

third-person singular presenttags on
present participletagging on
past participletagged on
pasttagged on

Questions about tag on

What does tag on mean?
Tag on means to hover an RFID device such as a smartcard over a receiver, often with a graphical user interface, in order to make a payment or gain entry.
What part of speech is tag on?
Tag on is a verb.
What is the past tense of tag on?
The past tense of tag on is tagged on.

Words near tag on in the dictionary

  1. tag group
  2. tag groups
  3. tag line
  4. tag lines
  5. tag off
  6. tag on
  7. tag out
  8. tag question
  9. tag questions
  10. tag rugby
  11. tag sale

Source and license

Adapted from Wiktionary: tag on (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “tag on.” Word.ws, https://word.ws/tag_on. Based on Wiktionary, CC BY-SA 4.0.